html,
body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    font-family: Arial, sans-serif;
    font-size: 16px;
    color: #333;
    line-height: 1.5;

    ul,
    li,
    p,
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    ol {
        list-style: none;
        margin: 0;
        padding: 0;
    }
}